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JAX-RS : Understanding the Basics |
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What is New in JAX-RS 2.1
Reactive Client API
CompletionStage
RxJava Observable
Please see JAX-RS RxJava for more information.
CompletableFuture as a method return value
Please see JAX-RS RxJava for more information about returning RxJava Observable.
Server Sent Events
CXF NIO Extension
Please see JAX-RS NIO for more information about this CXF 3.2.0 extension which is based on the early JAX-RS 2.1 API prototype.
What is New in JAX-RS 2.0
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One of the best JAX-RS 2.0 features is the support for server-side asynchronous invocations. Please see the AsyncResponse documentation which provides a very good overview of this feature.
See also this test resource.
Typically, the resource method accepting AsyncResponse will either store it and start a new thread to finish the request, the method will return and the invocation will be suspended, then eventually another thread (either the one which initiated an internal job or some other thread) will resume the suspended call. Note in this case the invocation will be suspended indefinitely until it is resumed.
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